Fireproof metal window-frame.



E. LINCK.

FIREPROOF METAL WINDOW FRAME.

. APPLICATION FILED FEB. 27, 1912. LEI34392 Patented Apr.6,1915.

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TED STATES PATENT FFIQ EDWARD LINCK, 0F PHILADELPHIA, PENNSYLVANIA,ASSIGNOR OF ONE-HALF TO FRANK LYSTER, OF PHILADELPHIA, PENNSYLVANIA.

FIREPROOF METALy WINDOW-FRAME.

Specification of Letters Patent.

Patented Apr. 6, 1915.

Application filed February 27, 1912. Serial N o. 680,367.

T0 all whom it may concern.'

Be it known that I, EDWARD Linex, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inFireproof Metal indow-Frames, of which the following is a specification.

This invention relates to glazing bars constructed preferably of sheetmetal to render the same fire-proof and adapted for use in fabricatingwindow sashes, doors, or other constructions in which plates or panes ofglass are to be mounted, said windows to be made any width or height.

The construction hereinafter disclosed is particularly adapted whereexposed to fire as the frame will not warp nor buckle even though placedunder a high degree of heat. The principal metallic members and bars arehollow, affording air spaces, commonly specified as dead air spaces,which do not readily transmit heat between the walls of the dead airspaces.

A further object is to provide a frame constructed with the variousmembers of bars cleated together without the aid of solder, amalgamationor welding.

For a full understanding of the present invention, reference is to behad to the following description and to the accompanying drawings, inwhich- Figure l is a cross section of a bar constructed according to myinvention. Fig. 2 is a cross section of another form of the same.

Throughout the following detail description and on the several figuresof the drawings, similar parts are referred to by like referencecharacters.

The present invention is constructed preferably of sheet metal to renderthe same fireproof, and can be assembled to create frames of variousheights and widths to insure large areas of lighting surfaces forfactories, mills, etc.

The bars are formed, preferably of sheet metal a plate l of which isbent to form the pane retaining shoulder, or offset portion 2, a backplate or web 3 and the overlap 25.

An auxiliary pane retaining bar 4 is bent to provide a grooved portion 5which is adapted to receive and retain the edge of the back plate or web3.

An open bar 6 is provided with a back plate or web 7 and a pane engagingshoulder or offset portion 8.

.An auxiliary pane retaining bar 9 is provided with grooved portions l0and ll, for the reception of the free edges of open bar 6.

Bars 6 and 9 are held together in any suitable manner, as by the screw12.

The two composite bars, so formed are adapted to be fitted together withtheir back plates or webs 3 and 7 in juxtaposition, and to be joined inany suitable manner, as by screw 13 and nut 27.

The form shown in Fig. 2 is similar to that of Fig. l except that theoverlap 25 is removed, and the grooved portion 5 embraces both the edgeof plate or web 3 and the grooved portion 1l of bar 9.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is

A pane support comprising a hollow metallic bar having oppositelydisposed flat offset portions, a web depending from the ridge of saidbar, webs depending from said offset portions and in spaced parallelrelation with the aforesaid web, a bar fitted over and having groovesfor the reception of the aforesaid first mentioned web and one of thewebs depending from the offset portions, and a bar fitted over andhaving grooves for the reception of the other web depending from theoffset portions and one of the groove portions of the last mentioned barto detachably secure the same in place, said last mentioned bars havingoffset portions complemental to and coperating with the offset portionsof the first mentioned bar to form seats for window panes, substantiallyas described.

In testimony whereof I affix my signature in presence of two witnesses.

EDWARD LINCK.

Witnesses:

MAHLON VAN Boosxmx, JAMES S. CLIFFORD.

copies of this patent may be obtained for vc cents each, by addressingthe Commissioner of ratents Washington, D. (3.

